CXCR4 and endometriosis: In contrast to Cd74, Cxcr4 mRNA expression (Figure 3) slightly increased at 1 week from induction (1.43-fold increase, p = 0.093) with minimal increase (p < 0.05) from weeks 2- and 4-weeks post-endometriosis induction (week 0) in mice with WT lesions.